Water. Desalination + reuse
Issue link: https://fhpublishing.uberflip.com/i/1019735
22 Tech Quarterly September 2018 Water. desalination + reuse In the ongoing quest to discover new e ciencies and to con- tinue driving down the cost of desalination, the incremental gains add up. Among the many elements of a desalination plant that can potentially a ect its overall cost and energy use are pipes and piping systems. As such, innovative pipe suppliers are contributing to reducing the cost of constructing and operat- ing desalination and advanced water treatment plants. In this edition of Water. desalination + reuse alone, the demand for e cient, • exible and cost-e ective piping systems is remarked upon repeatedly, whether it's for a multi-process wastewater reuse demonstration project (see PureWater Colorado, page 24), as part of a reverse osmosis system retro… t (see Rotec, page 27), at any of the major wastewater treatment plant upgrades planned for Los Angles, US (see page 12), or across Singapore's portfolio of desalination and water reuse plants and advanced water treatment pilot projects (see page 8). During the past decade, the step-change in piping systems has been to use plastic over metal, whether polyethylene (PE), polypropylene (PP), polyvinylidene • uoride (PVDF), or ethylene chlorotri• uoroethylene We haven't made our market entry in desalination yet — but we are very advanced in pilot testing Johannes Caprano, Technoform spokesman on heat exchange solutions TECH QUARTERLY Is plastic the new steel for desalination plant piping? (ECTFE), which are some of the most common plastics used in piping for water treatment plants. "All plastics products are a perfect material for desalination because of non- corrosion. Salt water is very aggressive to steel with regard to corrosion," explains Harald Bachinger, head of marketing at the Austria-based supplier Agru Kunststoš echnik. "We have pipes, … ttings, and valves made out of these materials for transporting seawater, and the chemicals that are used in the desalination process —œas well as water tanks, and water basin linings." The German plastics supplier Simona comments on the same property of plastic, outlining the bene… ts of Austria-based piping supplier Agru Kunststoff technik has developed range of product in plastics for desalination applications, in line with the trend for plastic piping across the industry.